Good description of the field. I would, however, take issue with one aspect of the narrative: analysts who -- as this document suggests -- like details and focus on technology make good IT analysts, but not necessarily "information" systems analysts. Instead, I would suggest that the analyst who, although being conversant in the basics of technology, is more focused on the broad flow of organizations, personnel, information flows and processes, may make better analysts in the information field.
The information systems analyst must understand that "system" refers not only--and perhaps not primarily--to computer systems and their supporting technology, but instead refers to the entire collection of human, organizational, process-related, cost and funding factors that go to make up complex business operations.
While technology will inevitably become an important part of these broad system flows, it should be viewed in a supporting role to the more important functional aspects of the system being considered.